napi-rs/test_module/src/global.rs

use std::convert::TryInto;

use napi::{CallContext, JsFunction, JsNumber, JsObject, JsTimeout, JsUndefined, Result};

#[js_function(2)]
pub fn set_timeout(ctx: CallContext) -> Result<JsTimeout> {
  let handler: JsFunction = ctx.get(0)?;
  let timeout: JsNumber = ctx.get(1)?;
  ctx
    .env
    .get_global()?
    .set_timeout(handler, timeout.try_into()?)
}

#[js_function(1)]
pub fn clear_timeout(ctx: CallContext) -> Result<JsUndefined> {
  let timer: JsTimeout = ctx.get(0)?;
  ctx.env.get_global()?.clear_timeout(timer)
}

pub fn register_js(exports: &mut JsObject) -> Result<()> {
  exports.create_named_method("setTimeout", set_timeout)?;
  exports.create_named_method("clearTimeout", clear_timeout)?;
  Ok(())
}